I have a new system with cerebro gx but no display other than the unit and phones. I have the lan but only limited details with linux as the app for linux doesnt work on manjaro. I have a spare rasp pi 3b with Venus os but my installer was concerned with it being on the system, should it be ok? is there an easier way as would like to have a 10" plus sized screen so family can see and adjust energy needs. Have an old ipad/android phones but the former is not supported the latter too small. is the hdmi port on the cerebro usable for display if vrm/via venus is an issue?